Fix trace header injection for calls using URL-first signature

src/initializers/riviere.ts

@@ -78,19 +78,34 @@ const init = (config, orkaOptions) => {
   });
   const handler = {
     apply: (target, thisArg, argumentsList) => {
+      const args = [...argumentsList];
       try {
-        const [requestArgs = {}] = argumentsList || [];
-        requestArgs.headers = requestArgs.headers || {};
-        const traceHeaderName = config.traceHeaderName && config.traceHeaderName.toLowerCase();
-        const traceId = getRequestContext()?.get('requestId') || getRequestContext()?.get('correlationId');
-        appendHeadersFromStore(requestArgs, getRequestContext(), config);
-        if (!requestArgs.headers[traceHeaderName] && traceId) {
-          requestArgs.headers[traceHeaderName] = traceId;
+        // http.request supports two signatures:
+        // - http.request(options[, callback])
+        // - http.request(url[, options][, callback])
+        // Find the options object based on the first argument type
+        let optionsIndex = 0;
+        const firstArg = args[0];
+        if (typeof firstArg === 'string' || firstArg instanceof URL) {
+          optionsIndex = 1;
+          if (!args[1] || typeof args[1] === 'function') {
+            args.splice(1, 0, {});
+          }
+        }
+        const requestArgs = args[optionsIndex] || {};
+        if (typeof requestArgs === 'object' && requestArgs !== null) {
+          requestArgs.headers = requestArgs.headers || {};
+          const traceHeaderName = config.traceHeaderName && config.traceHeaderName.toLowerCase();
+          const traceId = getRequestContext()?.get('requestId') || getRequestContext()?.get('correlationId');
+          appendHeadersFromStore(requestArgs, getRequestContext(), config);
+          if (!requestArgs.headers[traceHeaderName] && traceId) {
+            requestArgs.headers[traceHeaderName] = traceId;
+          }
         }
       } catch (e) {
         getLogger('orka.riviere').error(e);
       }
-      return target.apply(thisArg, argumentsList);
+      return target.apply(thisArg, args);
     }
   };
   http.request = new Proxy(http.request, handler);

test/initializers/riviere.test.ts

@@ -1,6 +1,7 @@
 import * as riviere from '@workablehr/riviere';
 import * as log4js from 'log4js';
 import * as sinon from 'sinon';
+import * as https from 'https';
 
 const sandbox = sinon.createSandbox();
 
@@ -95,4 +96,71 @@ describe('riviere', () => {
       );
     });
   });
+
+  context('when proxying https.request', () => {
+    let originalRequest;
+    let errorLoggerStub;
+
+    const baseConfig = {
+      riviere: {
+        enabled: true,
+        outbound: {
+          enabled: true,
+          request: { enabled: true }
+        },
+        inbound: {
+          request: { enabled: true }
+        }
+      },
+      traceHeaderName: 'x-request-id'
+    };
+
+    beforeEach(() => {
+      originalRequest = https.request;
+      errorLoggerStub = sandbox.stub(log4js.getLogger('orka.riviere').constructor.prototype, 'error');
+    });
+
+    afterEach(() => {
+      (https as any).request = originalRequest;
+    });
+
+    it('should handle URL string as first argument without error', () => {
+      orkaRiviereInitializer.default(baseConfig, orkaOptions);
+
+      const req = https.request('https://example.com/api/test', { method: 'GET' }, () => { /* noop */ });
+      req.on('error', () => { /* expected - we're destroying the socket */ });
+      req.destroy();
+
+      const headerError = errorLoggerStub.args.find(
+        args => args[0]?.message?.includes('Cannot create property')
+      );
+      (headerError === undefined).should.be.true();
+    });
+
+    it('should handle URL object as first argument without error', () => {
+      orkaRiviereInitializer.default(baseConfig, orkaOptions);
+
+      const req = https.request(new URL('https://example.com/api/test'), { method: 'GET' }, () => { /* noop */ });
+      req.on('error', () => { /* expected - we're destroying the socket */ });
+      req.destroy();
+
+      const headerError = errorLoggerStub.args.find(
+        args => args[0]?.message?.includes('Cannot create property')
+      );
+      (headerError === undefined).should.be.true();
+    });
+
+    it('should handle options object as first argument (original behavior)', () => {
+      orkaRiviereInitializer.default(baseConfig, orkaOptions);
+
+      const req = https.request({ hostname: 'example.com', path: '/api/test', method: 'GET' }, () => { /* noop */ });
+      req.on('error', () => { /* expected - we're destroying the socket */ });
+      req.destroy();
+
+      const headerError = errorLoggerStub.args.find(
+        args => args[0]?.message?.includes('Cannot create property')
+      );
+      (headerError === undefined).should.be.true();
+    });
+  });
 });